S
M
T
W
T
F
S
26
58°
34°
27
64°
35°
28
60°
35°
29
59°
45°
30
54°
46°
1
64°
46°
2
57°
41°
3
55°
35°
4
66°
35°
5
67°
48°
6
65°
54°
7
65°
48°
8
61°
36°
9
61°
38°
10
68°
51°
11
63°
38°
12
61°
36°
13
63°
41°
14
57°
49°
15
57°
47°
16
69°
53°
17
77°
55°
18
69°
54°
19
80°
61°
20
79°
58°
21
69°
48°
22
67°
52°
23
68°
50°
24
69°
53°
25
69°
54°
26
72°
57°
27
73°
53°
28
66°
51°
29
66°
51°
30
67°
56°
31
69°
56°
1
69°
55°
2
70°
54°
3
68°
53°
4
68°
51°
5
69°
56°
6
70°
57°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Westport
Westport's May 2026 forecast shows daily high temperatures ranging from 57° to 80°, with overnight lows between 47° and 61°. The average high for May is 69° with an average low of 54°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how May weather will actually feel in Westport. See also: June | July | August.
